201667051 has 8 divisors (see below), whose sum is σ = 205581024. Its totient is φ = 197783040.

The previous prime is 201667043. The next prime is 201667061. The reversal of 201667051 is 150766102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201667051 - 2³ = 201667043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201667061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6345 + ... + 21061.

It is an arithmetic number, because the mean of its divisors is an integer number (25697628).

Almost surely, 2^201667051 is an apocalyptic number.

201667051 is a deficient number, since it is larger than the sum of its proper divisors (3913973).

201667051 is a wasteful number, since it uses less digits than its factorization.

201667051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14981.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 201667051 is about 14200.9524680565. The cubic root of 201667051 is about 586.4238828760.

The spelling of 201667051 in words is "two hundred one million, six hundred sixty-seven thousand, fifty-one".